一种多级泵
By designing a symmetrical flow structure with internal and external flow channels in a multi-stage pump, combined with thrust bearings and pressure sensors, the problem of axial force overload on the pump shaft was solved, sealing performance and service life were improved, maintenance costs were reduced, and real-time monitoring of abnormal conditions of the pump shaft was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN PROVINCE CHUANGONG PUMP CO LTD
- Filing Date
- 2026-02-03
- Publication Date
- 2026-07-17
AI Technical Summary
In existing multistage pumps, the axial force on the pump shaft causes overload of the bearing system, resulting in bearing overheating and wear. The balancing device has a short lifespan, high maintenance costs, and unstable balancing effect, especially when conveying media containing particulate matter, abnormal wear is aggravated.
Design a multi-stage pump that uses a symmetrical flow structure with inner and outer channels to subject the pump shaft to forces acting in opposite directions from the fluid, thereby reducing or offsetting axial force. Eliminate the traditional balance chamber, use thrust bearings and elastic buffer washers, and combine pressure sensors to monitor axial force for real-time monitoring.
It effectively reduces the axial force on the pump shaft, reduces axial movement, improves sealing performance and the lifespan of the sealing structure, shortens the pump length, reduces maintenance costs, and enables timely detection and prevention of abnormal conditions on the pump shaft.
Smart Images
Figure CN121611630B_ABST